package cn.hdu.liang.generics;


class Fruit {

}

class Apple extends Fruit {

}

class Jonathan extends Apple {

}

class Orange extends Fruit {

}

public class CovariantArrays {
    public static void main(String[] args) {
        Fruit[] fruits = new Apple[10];
        fruits[0] = new Apple();
        fruits[1] = new Jonathan();

        try {
            fruits[0] = new Fruit();
        } catch(Exception e) {
            System.out.println(e);
        }

        try {
            fruits[0] = new Orange();
        } catch(Exception e) {
            System.out.println(e);
        }
    }
}
